Digital differential analyzer in conjunction with a general purpose computer



Sept 20, 1966 D. c. EVANS ETAL 3,274,375

DIGITAL DIFFERENTIAL ANALYZER IN CONJUNCTION WITH A GENERAL PURPOSECOMPUTER Filed May 1s, 1955 25 sheets-sheet 1 SePt- 20, 1966 D. c. EVANSETAL 3,274,376

DIGITAL DIFFERENTIAL ANALYZER IN GONJUNGTION WITH A GENERAL PURPOSECOMPUTER Filed May 18, 1955 25 Sheets-Sheet 2 'azz 51a 5:3

INVENTORS Blf BY aA r//o c. mA/5 MAUR/cf W. Hmm-w ATTORNEY sept. 2o,1966 D. C. EVANS ETAL 'Filed May 18, 1955 23 Sheets-Sheet 5 H12 BH2 5/95I a l l P K1A c 54W 5w 5%/ #4 FF; (62%....1 /Fzz /ffzz -cw FF C63 FP1#Fa MC2 Fz 7 L--- 49* wf /w C m2 my @AM C6] CGS JN V EN TORS ATTOR/VfySept. 20, 1966 D, Q EVANS ETAL 3,274,376

DIGITAL DIFFERENTIAL ANALYZER IN CONJUNGTION WITH A GENERAL PURPOSECOMPUTER Filed May 18, 1955 25 Sheets-Sheet 4 Tin ATTORNEY Sept. 20,1966 D. c. EVANS ETAL 3,274,376

DIGITAL DIFFERENTIAL ANALYZER IN CONJUNCTION WITH A GENERAL PURPOSECOMPUTER 25 Sheets-Sheet 5 Filed May 18, 1955 ATTORNEY Sept. 20, 1966 D.c. EVANS ETAL 3,274,376

DIGITAL DIFFERENTIAL ANALYZER IN CONJUNCTION WITH A GENERAL PURPOSECOMPUTER 25 Sheets-Sheet 6 Filed May 18, 1955 www l I l l l I l l I l Il I l i I l l l l l l l l I .Ii

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Sept. 20, 1966 D C. EVANS ETAL DIGITAL DIFFERENTIAL ANALYZER INCONJUNCTI WITH A GENERAL PURPOSE COMPUTER Filed May 18, 1955 23Sheets-Sheet '7 ATTORNEY Sept. 20, 1966 D. c. EVANS ETAL 3,274,375

DIGITAL DFFERENTIAL ANALYZEH 1N CONJUNCTION WITH A GENERAL PURPOSECOMPUTER Filed May 18, 1955 23 Sheets-Sheet 8 L l IVI i fV M HMM/Hm f 35M32 MPM/m M91? M33 CP ,D M37 i M30 MioC M31 i 5 1/ Nl 4738 f5 lMwA/H/cLsM/Qaf f//za//f/ :M53 MflA/f/vfmefc/fwro 1 j Mii l l l l l M57 1l ff 5MM/fw@ l M35 BY AV/D C. EVA/V5 M40/WCE iV. HOP/FM ATTORNEY Sept.l20, 1966 D, c EvANs ETAL 3,274,376

DIGITAL DIFFERENTIAL ANALYZER IN CONJUNCTION WITH A GENERAL PURPOSECOMPUTER Filed May 18, 1955 25 Sheets-Sheet 9 INVEN T0125 BY DAV/ C.EVA/V5 MA (/R/CE PV. HOEZ Sept. 20, 1966 D. c. EVANS ETAL. 3,274,376

DIGITAL DIFFERENTIAL ANALYZER IN CONJUNCTION WITH A GENERAL PURPOSECOMPUTER Filed May 18, 1955 2s sheets-sheet 1o l l cp I l l l l l l l ll p a' z l I I l s l l l l l IN V EN TORS BY A V/ C. EVA/VS MAUR/CE PV.K/PFEZZ 55 MMM AHORA/5y Sept. 20, 1966 D. c. EVANS ETAL 3,274,376

DIGITAL DIFFERENTIAL ANALYZER IN CONJUNCTION WITH A GENERAL PURPOSECOMPUTER 25 Sheets-Sheet 11 Filed May 18, 1955 wmmh.

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a E M 05 WNW HMH.; MEW@ A M A MM@ W No Nmap@ D. C. EVANS ETAL DIGITALDIFFERENTIAL ANALYZER IN CONJUNCTION WITH A GENERAL PURPOSE COMPUTERFiled May 18. 1955 25 Sheets-Sheet 12 ID REGISTER RQ REGISTER PNREGISTER (MULTIPLICAND) (MULTIPLIER) (PRODUCT) 6TEP5 ODD EVEN NT2 ODDEVEN ODD EVEN 0 011000 000000 0 110000 000000 000000 000000 1 001100000000 1 100000 000000 001100 001100 000000 z II000110 000000 1 000000000000 000110010010 000000 s 11000011 000000 0 000000 000000 010010000000 15 5 1 T' 3 2 T l zA 01111-: 01010=110000 .0 1 0 1 0 .10110 1.1iff/12 .1 0 1 1 o .0 1 1 0 0 +.01010 1.100 5ff4 .0 1 1 0 0 +.010101.1000 fff oarba WAIT COM MAN D WAIT TRANS FER TRANSFER DA I//D C1 IN VEN TOR` EVA N5 SGP- 20, 1956 D. c. EVANS ETAL 3,274,376

DIGITAL DIFFERENTIAL ANALYZER IN CONJUNCTION WITH A GENERAL PURPOSECOMPUTER Filed May 18, 1955 25 Sheets-Sheet l5 I 21o fl "c5 I ,Q24 EE f,exa /249 f /222 EE AAM/HE@ Op a HMa/F/f/Q 00 I few 5 ISI 5x l l I ,Q14I I l ,QZ 'SI/57 I 5 670 5' l 55 l I I I I i L14 flz' I 5x I @46/Qfa/sffer I f5 /226 @EG/WMI: rn l II l I 575W 575V 21:

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DIGITAL DIFFERENTIAL ANALYZER IN CONJUNCTION WITH A GENERAL PURPOSECOMPUTER Filed May 18, 1955 25 Sheets-Sheet 14 Sept. 20, 1966 D. c.EVANS ETAL 3,274,376

DIGITAL DIFFERENTIAL ANALYZER IN CONJUNCTION WITH A GENERAL PURPOSECOMPUTER Filed May 1s, 1955 2s sheets-sheet 15 I I I I I I |532 1N V ENTORS A TTOR'VVEV Sept. 20, 1966 D, EVANS ETAL 3,274,376

DIGITAL DIFFERENTIAL ANALYZER IN CONJUNGTION WITH A GENERAL PURPOSECOMPUTER Filed May 18, 1955 25 Sheets-Sheet 16 Z REGISTER A Y AYREGISTER IN V EN TORS Ti 3 7 an wo c. .6l/A /vs BY MAUR/c5 w. f/o/QAJEMSept. 20, 1966 D. c. EVANS ETAL 3,274,376

DIGITAL DIFFERENTIAL ANALYZER IN CONJUNCTION WITH A GENERAL PURPOSECOMPUTER Filed May 18, 1955 23 Sheets-Sheet 17 Sept. 20, 1966 D. C.EVANS ETAL DIGITAL DIFFERENTIAL ANALYZER IN CONJUNCTION WITH A GENERALPURPOSE COMPUTER Filed May 18, 1955 23 Sheets-Sheet 18 XAZSACOgINVENTORS Arf-ORNE),

Sept. zo, 1966 D. C. EVANS ETAL DIGITAL DIFFERENTIAL ANALYZER INCONJUNCTION Filed May 18, 1955 WITH A GENERAL PURPOSE COMPUTER 23Sheets-Sheet 19 MAGNET/C STR/PGE Clin @4134 @Rca/r f7 B MIM/62 @WMM/2134Tin INVENTORS Sept 20. 1966 D. c. EVANS ETAL 3,274,376

DIGTAL DIFFERENTIAL ANALYZER IN CONJUNCTION WITH A GENERAL PURPOSECOMPUTER Filed May 1s, 1955 2s sheets-sheet 2o mm M175- AAW/HER zf f m23l D224 l 0,1923@ 0,9240 CP M152 0,0100 I @2242 l I 02246 /Q2o l *N1 l ll i l f 1 5 09235 nIOO l @9258 l 0,4100 I M224 244 n )a/2234 i m49 l,QMz/f/f/Q AMPZ/F/[R 0,429 m .0227; cp I @021,1 I )LIOO e l i 02266 @M3,0,2276 M48: Y AAM/HER -l 1N VEN TORJ:`

2. A COMPUTING SYSTEM COMPRISING: A PLURALITY OF STORAGE MEANS FORSTORING SIGNAL REPRESENTATIONS OF NUMERICAL INFORMATION; ARITHMETICCIRCUIT MEANS FOR PERFORMING ARITHMETIC AND LOGIC OPERATIONS WITHRESPECT TO SIGNAL REPRESENTATIONS OF NUMERICAL INFORMATION WHEREBY TOFORM REPRESENTATIONS OF THE RESULTS OF SAID ARITHMETIC OPERATIONS;INTEGRATION CONTROL MEANS FOR COMBINING SIGNAL REPRESENTATIONS OFNUMERICAL INFORMATION SUCH AS TO EFFECT THE PERFORMANCE OF THE PROCESSOF INTEGRATION OF NUMERICAL INFORMATION SO COMBINED WHEREBY TO FORMREPRESENTATIONS OF RESULTS OF SAID PROCESS OF INTEGRATION; AN INPUTOUTPUT SYSTEM ADAPTED TO RECEIVE AND TRANSMIT VARIOUS